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1.2379-D2-SKD11

Cold work tool steel;high carbon,high chromium tool steel,deep hardening,highly wear resistant.It hardens upon air cooling so as to have minimum distortion after heat treatment.
Enduse = blanking or forming dies and thread rolling dies,cutting tools,stamping,woodworking,moulding tools for plastics.

Chemical Composition:

Grade

Standard

C

Si

Mn

P≤

S≤

Cr

Mo

V

1.2379

DIN

1.45-1.60

0.10-0.60

0.20-0.60

0.030

0.030

11.0-13.0

0.70-1.00

0.70-1.00

D2

AISI/SAE

1.40-1.60

0.10-0.60

0.20-0.60

0.030

0.030

11.0-13.0

0.70-1.20

0.50-1.10

SKD11

JIS

1.40-1.60

≤0.40

≤0.60

0.030

0.030

11.0-13.0

0.80-1.20

0.20-0.50

Heat Treatment: annealed

Hardness: max. 250 HB

Surface: surface flaws/cracks if any are removed by polishing. cleaning marks/scale pitting/peripheral decarburisation within the standard machining allowance is allowed.

US Test: SEP 1921 group 3, class D/d

Degree of Purity: DIN 50602, K4 max. 30

Microstructure: Carbide distribution as per Böhler classification Chart AL011DE10.91 edition 1984, aiming max. acceptable figures: diamter / thickness : up to 100 mm 3.3 ; 2.4 ; 1.4

                         100 - 250 mm 3.4 ; 1.5

                         251 - 400 mm 4.3 ; 3.5 ; 2.6

Test Certificate: EN 10204/3.1 with chem. analysis,hardness HB,heat treatment,US test,etc.

Round Bar: Ø12-400mm    Flat Bar: 12-400x100-750mm


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